"Invasion of the Bane" is the first episode of the British science fiction television series The Sarah Jane Adventures. It was written by series creator Russell T Davies with Gareth Roberts and was directed by Colin Teague. It was originally broadcast on BBC One on 1 January 2007 as a New Year special. Since a full series of the show was commissioned before the script for the episode was written it is not a pilot, despite serving the introductory functions of one.

The episode focuses upon a teenage girl, Maria Jackson, discovering the existence of aliens which intend to conquer Earth using a mind-altering soft drink. She teams up with investigative journalist Sarah Jane Smith, a former travelling companion of the Doctor in Doctor Who, to prevent their plans.